One Company. One Solution.

After-Hour Services   
​(707) 255-6450

Water Well Drilling
Pump Installation & Services
Rehab & Repair

What We Do

Serving Napa for over 70 years.
 We have been proudly serving the Napa Valley and surrounding areas since 1949. With a company commitment to quality work and an emphasis on excellent customer service, it is easy to see how five generations have been afforded the privilege to service this wonderful community. ​Our family owned and operated business has built a respected reputation for our outstanding ability to offer high quality customized water systems. With our drilling & pump departments working side by side, McLean & Williams, Inc. has the unique knowledge to seamlessly merge the process of well construction with design and installation of pumping systems for any of your residential, commercial or agricultural water needs.  

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T E S T I M O N I A L S

Happy Customers Matter!
"First off, we had several other companies out that said we were better off working with the city. Even after telling them we wanted our own sustainable systems, they said it was not possible. McLean was able to make it happen for us. I can't say enough good things about them. They were professional, never gave up, and were very knowledgeable."
Craig P.
"I would tell other businesses that deal with pump systems to hire them with confidence. They are highly experienced and know advanced, in depth knowledge of all different types of systems. They will be able to match your needs to a specific option and equipment. They were very surprising. I didn't know pump systems were so intricate.
Their knowledge and friendliness"
E.I.